水利水电科技进展Issue(4)：20-23,28,5.DOI:10.3880/j.issn.10067647.2014.04.005
基于三维离散元法的地下洞室定位块体地震响应
Seismic response assessment of positioning block in underground cavern based on 3D DEM
摘要
Abstract
In this paper, we analyze the earthquake response characteristics and dynamic stability of positioning block under different support conditions by taking the underground plant of Dagangshan Hydropower Station as an example. In doing it so, a typical positioning block numerical model of erection bay based on the block theory and three-dimensional distinct element code ( 3DEC ) have been built. Additionally, we perform a comparison between simulative dig displacement of surrounding rock and real deformation monitoring data, then demonstrates the parameter of block and structural planes and the feasibility of building relative models. Overall, the comparisons of earthquake response characteristics and dynamic stability of positioning block under different support conditions show that it is feasible to analyze block earthquake and stability with discrete element method. Additionally, the bolting support presents a better anti-earthquake effect for positioning block.关键词
地下洞室/块体理论/三维离散元法/地震响应/大岗山水电站Key words
underground cavern/key block/3D DEM/seismic response/Dagangshan Hydropower Station分类
建筑与水利引用本文复制引用
朱付广,王禹,宋康林,刘继国,朱泽奇..基于三维离散元法的地下洞室定位块体地震响应[J].水利水电科技进展,2014,(4):20-23,28,5.基金项目
国家自然科学基金(51009130,51279202) （51009130,51279202）
